One day you were at the hospital that you work at. You have 7 people you are over for their residency, since you are the head pediatric doctor.
There was Ava, Ben, Chris, Delilah, Evan, Francine, and Gary. You are all working together to develop a new prosthetic arm for your patients.
You step outside to receive a phone call from your patient, just to come back to find your prosthetic broken! You are very ticked because the head of the hospital (Jim) was going to come see your prosthetic on Monday.
You know you will get in trouble, fired, or demoted, since you have only been at the hospital for 2 years. This is only if you cannot prove that Ava, Ben, Chris, Delilah, Evan, Francine, or Gary did it.
To find out who did it, you interrogate each of them (Ava, Ben, Chris, Delilah, Evan, Francine, and Gary).
You know two of them did it and that two of them are lying.
This is what each of them said:
Ava: I was cleaning your “Doctor of the Year” award.
Ben: I was fitting Don (17) for a cast.
Chris: I was showing Mary (6) and her mother Lucy (34) to their overnight room.
Delilah: I was taking Savanna's (32) blood work.
Evan: I was packing up to leave for the day, after my 25-hour shift.
Francine: I was making sure our prosthetic could bear the weight of running.
Gary: I was asking Mark (12) how he felt after his surgery.
Who did it?